graph [

   directed 1

   node [

      id 1

   ]

   node [

      id 2

   ]

   node [

      id 3

   ]

   node [

      id 4

   ]

   node [

      id 5

   ]

   edge [

   source 1

   target 2

   ]

   edge [

   source 1

   target 3

   ]

   edge [

   source 2

   target 5

   ]

   edge [

   source 3

   target 4

   ]

   edge [

   source 4

   target 5

   ]

]

